Happy endings are just not a thing on The Originals. Though Hayley (Phoebe Tonkin) and Elijah (Daniel Gillies) just found their way into each other's arms, is tragedy about to strike on Friday's season finale?

"The moment of [Elijah and Hayley's] connection is soon followed by disaster and catastrophe. There's not going to be a lot of time for them to enjoy the comfort of one another's embrace," executive producer Michael Narducci tells TVGuide.com.

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And the threat comes with a familiar face... Elijah ripped out Marcel's (Charles Michael Davis) heart, so his former protege — who is very much not dead — may be looking to rip out Elijah's in return, both literally and metaphorically.

"From Marcel's point of view, there must be a reckoning," Narducci says. "He's stronger than the Mikaelsons. He cannot be killed, as far as anyone knows. His bite will kill them. That's where we begin the finale. ... Things are going to go very, very bad very, very quickly."

OK ... but just how bad? It isn't just a question of whether Elijah and Hayley's relationship can survive... It's whether they can survive Marcel's onslaught at all! Yikes.

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